Self-operated circulating pump for washing mechanical seal water

Abstract

A self-operated circulating pump for mechanical seal water washing comprises a pump body and an isolation sleeve, the isolation sleeve is arranged in the middle of the inner side of the pump body, an inner magnetic bag is rotationally installed in an inner cavity of the isolation sleeve, a first rotating shaft is fixed to the middle of the inner magnetic bag, and a first impeller located in a cooling water circulation path is installed at one end of the first rotating shaft; one side of one end of the pump body is provided with a cooling water inlet, and the other side of one end of the pump body is provided with a cooling water outlet; an outer magnetic bag is rotationally connected into a cavity between the outer side of the isolation sleeve and the pump body, a second rotating shaft is fixed to the middle of the outer magnetic bag, and a second impeller located on a mechanical seal water path is fixed to one end of the second rotating shaft. And then the inner magnetic bag, the outer magnetic bag and the second impeller are driven to rotate, circulation of cooling water and mechanical seal water is achieved, an extra external power source is not needed, and energy consumption and equipment cost are reduced.

Description

Technical Field

[0001] This utility model relates to a self-regulating circulating pump, specifically a self-regulating circulating pump used for mechanical seal water flushing. Background Technology

[0002] In the traditional PLAN53A mechanical seal water flushing design, the self-circulation speed of the mechanical seal water is typically increased by installing a pumping ring on the pump shaft. When converting from other flushing solutions to the PLAN53A solution, the pump's mechanical seal water directly utilizes the medium pumped, while the heat exchanger relies on circulating water for heat exchange. However, due to space limitations in existing pump models, it is impossible to install a pumping ring to enhance the flow performance of the mechanical seal water. This limitation causes a rapid rise in temperature at the mechanical seal, leading to carbonization of organic matter in the mechanical seal water and ultimately resulting in mechanical seal leakage. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a self-regulating circulating pump for mechanical seal water flushing, which effectively solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes a pump body and an isolation sleeve. An isolation sleeve is provided in the middle of the inner side of the pump body. An inner magnetic bladder is rotatably installed in the inner cavity of the isolation sleeve. A first rotating shaft is fixed in the middle of the inner magnetic bladder. A first impeller located in the cooling water flow path is installed at one end of the first rotating shaft. A cooling water inlet is provided on one side of one end of the pump body, and a cooling water outlet is provided on the other side of one end of the pump body.

[0005] An outer magnetic bladder is rotatably connected to the cavity between the outer side of the isolation sleeve and the pump body. A second rotating shaft is fixed in the middle of the outer magnetic bladder. A second impeller located on the mechanical seal water path is fixed at one end of the second rotating shaft. An organic seal water inlet is provided on one side of the other end of the pump body, and an organic seal water outlet is provided on the other side of the other end of the pump body.

[0006] Preferably, the outer magnetic bladder is cylindrical, and a corresponding cavity is formed in the outer magnetic bladder at the location of the isolation sleeve.

[0007] Preferably, both the first and second rotating shafts are connected to the pump body via bearings.

[0008] Preferably, the inner magnetic bladder is located inside the outer magnetic bladder.

[0009] Preferably, when the inner magnetic bladder rotates, the outer magnetic bladder rotates along with the inner magnetic bladder.

[0010] Preferably, the first rotating shaft and the second rotating shaft are arranged coaxially.

[0011] Beneficial effects: 1. By cleverly utilizing the power of the cooling water flow, the first impeller is driven to rotate, which in turn drives the inner magnetic bladder, outer magnetic bladder and the second impeller to rotate, realizing the circulation of cooling water and mechanical seal water. No additional external power source is required, reducing energy consumption and equipment costs.

[0012] 2. Successfully achieves independent circulation of cooling water and mechanical seal water, meeting the specific requirements of the PLAN53A mechanical seal water flushing solution, ensuring the normal operation of the mechanical seal, and effectively extending the service life of the equipment.

[0013] 3. All components work together in a compact and reasonable manner. The interaction between the inner and outer magnetic bladders, as well as the cooperation between the shaft and the impeller, ensures the efficient operation of the circulating pump and improves the overall performance of the equipment. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] The following are the labels in the diagram: 1. Pump body; 2. Isolation sleeve; 3. Inner magnetic bladder; 4. First shaft; 5. First impeller; 6. Cooling water inlet; 7. Cooling water outlet; 8. Outer magnetic bladder; 9. Second shaft; 10. Second impeller; 11. Mechanical seal water inlet; 12. Mechanical seal water outlet; 13. Bearing. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1 The specific embodiments of this utility model will be described in further detail.

[0018] Example 1, by Figure 1 The present invention provides a self-regulating circulating pump for mechanical seal water flushing, comprising a pump body 1, an isolation sleeve 2, an inner magnetic bladder 3, a first rotating shaft 4, a first impeller 5, a cooling water inlet 6, a cooling water outlet 7, an outer magnetic bladder 8, a second rotating shaft 9, a second impeller 10, a mechanical seal water inlet 11, a mechanical seal water outlet 12, and a bearing 13. The isolation sleeve 2 is provided in the middle of the inner side of the pump body 1, and the inner magnetic bladder 3 is rotatably installed in the inner cavity of the isolation sleeve 2. The first rotating shaft 4 is fixed in the middle of the inner magnetic bladder 3. The first impeller 5 located in the cooling water flow path is installed at one end of the first rotating shaft 4. A cooling water inlet 6 is provided on one side of one end of the pump body 1, and a cooling water outlet 7 is provided on the other side of one end of the pump body 1.

[0019] An outer magnetic bladder 8 is rotatably connected to the cavity between the outer side of the isolation sleeve 2 and the pump body 1. A second rotating shaft 9 is fixed in the middle of the outer magnetic bladder 8. A second impeller 10 located on the mechanical seal water path is fixed at one end of the second rotating shaft 9. An organic seal water inlet 11 is provided on one side of the other end of the pump body 1, and an organic seal water outlet 12 is provided on the other side of the other end of the pump body 1.

[0020] Pump body 1: As the main structure of the entire circulating pump, it provides installation space and support for the internal components.

[0021] Isolation sleeve 2: Located in the middle of the inner side of the pump body 1, it divides the internal space of the pump body into different cavities, serving as an isolation and protection function.

[0022] Inner magnetic bladder 3: Rotatably installed in the inner cavity of the isolation sleeve 2, with the first rotating shaft 4 fixed in the middle.

[0023] First rotating shaft 4: One end is equipped with the first impeller 5, which is connected to the pump body 1 through the bearing 13 to achieve stable rotation.

[0024] First impeller 5: Located in the cooling water flow path, when the cooling water passes through, it drives the first impeller 5 to rotate, and the rotation of the first impeller 5 drives the inner magnetic bladder 3 to rotate through the first rotating shaft 4.

[0025] Cooling water inlet 6 and cooling water outlet 7 are respectively located on both sides of one end of the pump body 1 for the inflow and outflow of cooling water.

[0026] Outer magnetic bladder 8: cylindrical, located in the cavity between the outer side of the isolation sleeve 2 and the pump body 1, interacts with the inner magnetic bladder 3, and has a cavity at the corresponding position of the isolation sleeve 2, with the second rotating shaft 9 fixed in the middle.

[0027] Second rotating shaft 9: One end is fixed with the second impeller 10, and is connected to the pump body 1 through the bearing 13, and is arranged coaxially with the first rotating shaft 4.

[0028] Second impeller 10: Located on the mechanical seal water path, it drives the mechanical seal water circulation when it rotates.

[0029] Mechanical seal water inlet 11 and mechanical seal water outlet 12: respectively located on both sides of the other end of the pump body 1, for the inflow and outflow of mechanical seal water.

[0030] Bearing 13: Used to support the first rotating shaft 4 and the second rotating shaft 9, ensuring their smooth rotation.

[0031] Working principle: When this utility model is in use, when cooling water flows into the pump body 1 from the cooling water inlet 6, the cooling water passes through the first impeller 5 located on its flow path; due to the power generated by the flow of cooling water, the first impeller 5 is driven to rotate, and the first impeller 5 is connected to the first rotating shaft 4, so the rotation of the first impeller 5 drives the inner magnetic bladder 3 to rotate in the inner cavity of the isolation sleeve 2 through the first rotating shaft 4.

[0032] The inner magnetic bladder 3 and the outer magnetic bladder 8 interact with each other. When the inner magnetic bladder 3 rotates, it will drive the outer magnetic bladder 8 to rotate synchronously in the cavity between the outer side of the isolation sleeve 2 and the pump body 1. A second rotating shaft 9 is fixed in the middle of the outer magnetic bladder 8, and its rotation will drive the second rotating shaft 9 to rotate.

[0033] The second impeller 10, which is fixed at one end of the second shaft 9, is located on the mechanical seal water path. As the second shaft 9 rotates, the second impeller 10 starts to rotate, thereby driving the flow of mechanical seal water, which then circulates in the pump body 1 and flows out from the mechanical seal water outlet 12.

[0034] Through the coordinated operation of various components, the rotation of the inner magnetic bladder 3 and the outer magnetic bladder 8 is achieved by utilizing the power of the cooling water flow, which in turn drives the first impeller 5 and the second impeller 10 to rotate respectively, ultimately achieving independent circulation of cooling water and mechanical seal water, thus meeting the usage requirements of the mechanical seal water flushing solution PLAN53A.

[0035] Beneficial effects: This utility model features a novel structure and ingenious design. The pump body can operate using the energy of the water flow itself without the need for external electricity or mechanical power, achieving efficient energy utilization and conversion. Furthermore, due to the adoption of a double impeller structure, the pump maintains high stability and efficiency during operation, making it suitable for various applications requiring liquid circulation.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A self-contained circulating pump for mechanical seal water flushing, comprising a pump body (1) and a spacer sleeve (2), characterized in that: The middle part of the inner side of the pump body (1) is provided with an isolation sleeve (2), the inner cavity of the isolation sleeve (2) is rotatably provided with an inner magnetic capsule (3), the middle part of the inner magnetic capsule (3) is fixedly provided with a first rotating shaft (4), one end of the first rotating shaft (4) is provided with a first impeller (5) located in the cooling water flow path, one side of one end of the pump body (1) is provided with a cooling water inlet (6), and the other side of the other end of the pump body (1) is provided with a cooling water outlet (7). The cavity between the outer side of the isolation sleeve (2) and the pump body (1) is rotatably connected with an outer magnetic capsule (8), the middle part of the outer magnetic capsule (8) is fixedly provided with a second rotating shaft (9), one end of the second rotating shaft (9) is fixedly provided with a second impeller (10) located in the mechanical seal water path, one side of the other end of the pump body (1) is provided with a mechanical seal water inlet (11), and the other side of the other end of the pump body (1) is provided with a mechanical seal water outlet (12).

2. A self-contained circulating pump for gland water flushing according to claim 1, characterized in that: The outer magnetic capsule (8) is in a cylindrical shape, and a corresponding cavity is formed in the isolation sleeve (2) at the position of the outer magnetic capsule (8).

3. A self-contained circulating pump for gland water flushing according to claim 2, characterized in that: The first rotating shaft (4) and the second rotating shaft (9) are connected with the pump body (1) through bearings (13).

4. A self-contained circulating pump for gland water flushing according to claim 3, characterized in that: The inner magnetic capsule (3) is located in the inner part of the outer magnetic capsule (8).

5. A self-contained circulating pump for gland water flushing according to claim 4, characterized in that: When the inner magnetic capsule (3) rotates, the outer magnetic capsule (8) rotates with the inner magnetic capsule (3).

6. A self-contained circulating pump for gland water flushing according to claim 5, characterized in that: The first rotating shaft (4) and the second rotating shaft (9) are coaxially arranged.

Images